stratified sampling
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Isometopidae,
isometric,
isometric exercise,
isometrical,
isometrics,
isometrography,
isometropal,
isometropia,
isometry,
isomigugen,
相似单词
straticulate,
straticulation,
stratification,
stratified,
stratified sample,
stratified sampling,
stratiform,
stratiformis,
stratify,
stratigrapher,